From 912fb2d3544a634359562bd2afd64bc6f0b761e5 Mon Sep 17 00:00:00 2001 From: 3dtours Date: Mon, 27 Jul 2026 20:19:50 +0700 Subject: [PATCH] fix: fallback channel for unconfigured tracks uses index When midiChannel is undefined (no instrument set), compute channel from track index to avoid defaulting to 0 and clashing with configured tracks that use channel 0. --- app/static/js/app.jsx | 20 ++++++++++++++++++-- app/static/js/app.precompiled.js | 4 ++-- 2 files changed, 20 insertions(+), 4 deletions(-) diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx index 995d248..2da6451 100644 --- a/app/static/js/app.jsx +++ b/app/static/js/app.jsx @@ -10407,7 +10407,15 @@ const App = () => { const instrumentProgram = track ? track.instrumentProgram : undefined; const synthEngine = track ? track.synth_engine : undefined; var allTracks = activeTracksRef.current || []; - var mainCh = track ? (track.midiChannel !== undefined ? track.midiChannel : 0) : 0; + var mainCh = 0; + if (track) { + if (track.midiChannel !== undefined) { + mainCh = track.midiChannel; + } else { + for (var mc = 0; mc < allTracks.length; mc++) { if (allTracks[mc].id === track.id) { mainCh = mc >= 9 ? mc + 1 : mc; break; } } + if (mainCh >= 16) mainCh = 0; + } + } // Compute session beat offset from target item var sessionBeatOffset = 0; var targetTrk = allTracks.find(function(t) { return t.id === st.trackId; }); @@ -10438,7 +10446,15 @@ const App = () => { var ghostSynth = layer.synthEngine || (ghostTrack ? ghostTrack.synth_engine : undefined); if (ghostProg === undefined && !ghostSynth) return; var ghostDest = getOrCreateTrackNode(ghostTrack, context); - var ghostCh = ghostTrack ? (ghostTrack.midiChannel !== undefined ? ghostTrack.midiChannel : 0) : 0; + var ghostCh = 0; + if (ghostTrack) { + if (ghostTrack.midiChannel !== undefined) { + ghostCh = ghostTrack.midiChannel; + } else { + for (var gc = 0; gc < allTracks.length; gc++) { if (allTracks[gc].id === ghostTrack.id) { ghostCh = gc >= 9 ? gc + 1 : gc; break; } } + if (ghostCh >= 16) ghostCh = 0; + } + } layer.notes.forEach(function(note) { var beat = (note.start_beat || 0) + sessionBeatOffset; var dur = note.duration_beats || 1; diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js index bb1da58..36b9302 100644 --- a/app/static/js/app.precompiled.js +++ b/app/static/js/app.precompiled.js @@ -303,9 +303,9 @@ const subMidiItems=subTrack.midiItems||[];if(window.SonicSF&&subMidiItems.length if(noteStartMain>=secStart&¬eStartMain{const context=getAudioContext();const track=tracks.find(t=>t.id===trackId);if(!track)return;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];// Get or create persistent gain & panner for real-time control const gainNode=getOrCreateTrackNode(track,context);const pannerNode=activeTrackNodesRef.current[track.id].pannerNode;clips.forEach(clip=>{if(!clip.buffer)return;const source=context.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(gainNode);gainNode.connect(pannerNode);const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(offsetTime0)&&window.SonicSF){const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime{if(st.type!=='PIANO_ROLL')return;const context=getAudioContext();const midiNotes=notesOverride||st.notes||[];const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;const startWallTime=context.currentTime;const track=activeTracksRef.current?activeTracksRef.current.find(t=>t.id===st.trackId):null;const destNode=getOrCreateTrackNode(track,context);const instrumentProgram=track?track.instrumentProgram:undefined;const synthEngine=track?track.synth_engine:undefined;var allTracks=activeTracksRef.current||[];var mainCh=track?track.midiChannel!==undefined?track.midiChannel:0:0;// Compute session beat offset from target item +const midiItems=track.midiItems||[];if((track.type==='MIDI'||midiItems.length>0)&&window.SonicSF){const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime{if(st.type!=='PIANO_ROLL')return;const context=getAudioContext();const midiNotes=notesOverride||st.notes||[];const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;const startWallTime=context.currentTime;const track=activeTracksRef.current?activeTracksRef.current.find(t=>t.id===st.trackId):null;const destNode=getOrCreateTrackNode(track,context);const instrumentProgram=track?track.instrumentProgram:undefined;const synthEngine=track?track.synth_engine:undefined;var allTracks=activeTracksRef.current||[];var mainCh=0;if(track){if(track.midiChannel!==undefined){mainCh=track.midiChannel;}else{for(var mc=0;mc=9?mc+1:mc;break;}}if(mainCh>=16)mainCh=0;}}// Compute session beat offset from target item var sessionBeatOffset=0;var targetTrk=allTracks.find(function(t){return t.id===st.trackId;});if(targetTrk){var targetIt=(targetTrk.midiItems||[]).find(function(m){return m.id===st.target_id;});if(targetIt)sessionBeatOffset=targetIt.startTime/(60.0/bpmVal*4)*4;}midiNotes.forEach(note=>{const noteOnBeat=(note.start_beat||0)+sessionBeatOffset;const noteDurBeat=note.duration_beats||1;const noteStartSec=noteOnBeat*secondsPerBeat;const noteDurSec=noteDurBeat*secondsPerBeat;if(noteStartSec+noteDurSec>offsetSeconds){const effectiveStart=Math.max(0,noteStartSec-offsetSeconds);const effectiveDur=noteDurSec-Math.max(0,offsetSeconds-noteStartSec);const scheduledTime=startWallTime+effectiveStart;const durMs=effectiveDur*1000;if(window.SonicSF){window.SonicSF.playNote(note.pitch||60,note.velocity||0.8,durMs,scheduledTime,instrumentProgram,destNode,mainCh,synthEngine);}}});// Play ghost notes from active tracks -var ghostLayers=st.ghostPlayLayers||[];ghostLayers.forEach(function(layer){var ghostTrack=allTracks.find(function(t){return t.id===layer.trackId;});var ghostProg=layer.instrumentProgram!==undefined?layer.instrumentProgram:ghostTrack?ghostTrack.instrumentProgram:undefined;var ghostSynth=layer.synthEngine||(ghostTrack?ghostTrack.synth_engine:undefined);if(ghostProg===undefined&&!ghostSynth)return;var ghostDest=getOrCreateTrackNode(ghostTrack,context);var ghostCh=ghostTrack?ghostTrack.midiChannel!==undefined?ghostTrack.midiChannel:0:0;layer.notes.forEach(function(note){var beat=(note.start_beat||0)+sessionBeatOffset;var dur=note.duration_beats||1;var startSec=beat*secondsPerBeat;var durSec=dur*secondsPerBeat;if(startSec+durSec>offsetSeconds){var effStart=Math.max(0,startSec-offsetSeconds);var effDur=durSec-Math.max(0,offsetSeconds-startSec);var schedTime=startWallTime+effStart;var durMs=effDur*1000;if(window.SonicSF){window.SonicSF.playNote(note.pitch||60,note.velocity||0.8,durMs,schedTime,ghostProg,ghostDest,ghostCh,ghostSynth);}}});});};const handlePlayPause=()=>{if(activeTab!=='main'&&!activeTab.startsWith('session_')){// Sub-tab playback transport +var ghostLayers=st.ghostPlayLayers||[];ghostLayers.forEach(function(layer){var ghostTrack=allTracks.find(function(t){return t.id===layer.trackId;});var ghostProg=layer.instrumentProgram!==undefined?layer.instrumentProgram:ghostTrack?ghostTrack.instrumentProgram:undefined;var ghostSynth=layer.synthEngine||(ghostTrack?ghostTrack.synth_engine:undefined);if(ghostProg===undefined&&!ghostSynth)return;var ghostDest=getOrCreateTrackNode(ghostTrack,context);var ghostCh=0;if(ghostTrack){if(ghostTrack.midiChannel!==undefined){ghostCh=ghostTrack.midiChannel;}else{for(var gc=0;gc=9?gc+1:gc;break;}}if(ghostCh>=16)ghostCh=0;}}layer.notes.forEach(function(note){var beat=(note.start_beat||0)+sessionBeatOffset;var dur=note.duration_beats||1;var startSec=beat*secondsPerBeat;var durSec=dur*secondsPerBeat;if(startSec+durSec>offsetSeconds){var effStart=Math.max(0,startSec-offsetSeconds);var effDur=durSec-Math.max(0,offsetSeconds-startSec);var schedTime=startWallTime+effStart;var durMs=effDur*1000;if(window.SonicSF){window.SonicSF.playNote(note.pitch||60,note.velocity||0.8,durMs,schedTime,ghostProg,ghostDest,ghostCh,ghostSynth);}}});});};const handlePlayPause=()=>{if(activeTab!=='main'&&!activeTab.startsWith('session_')){// Sub-tab playback transport const st=subTabs.find(s=>s.id===activeTab);if(!st||!st.buffer&&st.type!=='PIANO_ROLL')return;if(st.isPlaying){stopAllPlayback();setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,isPlaying:false}:s));}else{stopAllPlayback();const startOffset=st.currentTime||0;if(st.type==='PIANO_ROLL'){schedulePianoRollMidi(st,startOffset);startSubTabPlayback(st,startOffset);}else{startSubTabPlayback(st,startOffset);}setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,isPlaying:true,currentTime:startOffset}:s));}return;}const context=getAudioContext();if(isPlaying){stopAllPlayback();}else{startOffsetTimeRef.current=currentTime;startAudioTimeRef.current=context.currentTime;startTrackPlayback(currentTime);setIsPlaying(true);}};handlePlayPauseRef.current=handlePlayPause;const handlePause=()=>{if(isPlaying||subTabs.some(s=>s.isPlaying))stopAllPlayback();};const stopAllPlayback=()=>{activeSourcesRef.current.forEach(src=>{try{src.stop();}catch(e){}});activeSourcesRef.current=[];Object.values(activeTrackNodesRef.current).forEach(n=>{if(n.fxStopFn)n.fxStopFn();});activeTrackNodesRef.current={};if(window.SonicSF){window.SonicSF.stopAll();}setIsPlaying(false);setSubTabs(prev=>prev.map(s=>({...s,isPlaying:false})));};const seekPlaybackTo=time=>{const isSubTab=subTabs.some(sub=>sub.id===activeTab);if(isSubTab){const st=subTabs.find(s=>s.id===activeTab);if(!st)return;if(st.isPlaying){stopAllPlayback();window.SonicSF.stopAll();setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,currentTime:time,isPlaying:true}:s));const ctx=getAudioContext();startOffsetTimeRef.current=time;startAudioTimeRef.current=ctx.currentTime;startBufferOffsetRef.current=time*(st.speed||1.0);if(st.type==='PIANO_ROLL'){schedulePianoRollMidi(st,time);}startSubTabPlayback(st,time);}else{setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,currentTime:time}:s));}}else{if(isPlaying){stopAllPlayback();setCurrentTime(time);startOffsetTimeRef.current=time;startAudioTimeRef.current=getAudioContext().currentTime;startTrackPlayback(time);setIsPlaying(true);}else{setCurrentTime(time);}}};const handleStop=()=>{if(recordingStateRef.current==='RECORDING'||recordingStateRef.current==='COUNT_IN'){stopRecordingTake();return;}stopAllPlayback();if(activeTab!=='main'&&!activeTab.startsWith('session_')){setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,currentTime:0}:s));}else{setCurrentTime(0);}};const drawVuMeter=(canvas,db)=>{if(!canvas)return;const ctx=canvas.getContext('2d');if(!ctx)return;const w=canvas.width;const h=canvas.height;ctx.clearRect(0,0,w,h);const minDb=-60;const maxDb=0;const frac=Math.max(0,Math.min(1,(db-minDb)/(maxDb-minDb)));ctx.fillStyle='#18181b';ctx.fillRect(0,0,w,h);const grad=ctx.createLinearGradient(0,0,w,0);grad.addColorStop(0,'#10b981');grad.addColorStop(0.7,'#eab308');grad.addColorStop(0.95,'#ef4444');ctx.fillStyle=grad;ctx.fillRect(0,0,w*frac,h);if(db>=-0.5){ctx.fillStyle='#ff0000';ctx.fillRect(w-6,0,6,h);}};const handleRecordClick=async()=>{if(recordingState==='RECORDING'||recordingState==='COUNT_IN'){await stopRecordingTake();return;}// Check if piano roll tab is active and armed const activePianoRoll=subTabs.find(s=>s.id===activeTab&&s.type==='PIANO_ROLL'&&s.isArmed);if(activePianoRoll&&selectedMidiInputId){setRecordingState('COUNT_IN');const secondsPerBeat=60.0/(parseInt(bpm)||120);const countInDuration=secondsPerBeat*4;const audioCtx=getAudioContext();const now=audioCtx.currentTime;showToast('Metronome Count-in: 4... 3... 2... 1... (MIDI Piano Roll)','info');for(let i=0;i<4;i++){playMetronomeClick(now+i*secondsPerBeat,i===0);}setTimeout(()=>{startPianoRollRecording(activePianoRoll);},countInDuration*1000);return;}const armed=activeTracks.filter(t=>t.isArmed&&t.inputSource?.deviceType&&t.inputSource.deviceType!=='NONE');if(armed.length===0){showToast('Vui lòng Arm (R) ít nhất một track và chọn cổng Input để ghi âm.','warning');return;}setRecordingState('COUNT_IN');const secondsPerBeat=60.0/(parseInt(bpm)||120);const countInDuration=secondsPerBeat*4;const audioCtx=getAudioContext();const now=audioCtx.currentTime;showToast('Metronome Count-in: 4... 3... 2... 1...','info');for(let i=0;i<4;i++){playMetronomeClick(now+i*secondsPerBeat,i===0);}setTimeout(()=>{startRecordingTake(armed);},countInDuration*1000);};const startPianoRollRecording=tab=>{try{const context=getAudioContext();const secondsPerBeat=60.0/(parseInt(bpm)||120);const startTime=currentTime;const startBeat=startTime/secondsPerBeat;nextMetronomeBeatRef.current=Math.ceil(startBeat);const midiRec=new ClientMIDIRecorder(context,parseInt(bpm)||120,4);midiRec.tempTabId=tab.id;midiRec.selectedMidiInputId=selectedMidiInputId||'ALL';midiRec.start(startTime/secondsPerBeat,midiRec.selectedMidiInputId);pianoRollRecorderRef.current=midiRec;activeMIDIRecordersRef.current['piano_roll']=midiRec;setRecStartTimelineTime(startTime);recordingStartTimeRef.current=startTime;setRecordingState('RECORDING');setRecTempMidiNotes([]);const ctx=getAudioContext();const silentBuf=ctx.createBuffer(1,128,ctx.sampleRate);setSubTabs(prev=>prev.map(s=>s.id===tab.id?{...s,buffer:silentBuf,isPlaying:true}:s));startSubTabPlayback({...tab,buffer:silentBuf},startTime);startOffsetTimeRef.current=startTime;startAudioTimeRef.current=context.currentTime;setIsPlaying(true);midiRec.onNoteOn=(pitch,currentBeat)=>{const elapsedBeats=Math.max(0,currentBeat);const sec=elapsedBeats*(60.0/(parseInt(bpm)||120));const activeNotes=Array.from(midiRec.activeNotes.values()).map(n=>({id:'rec_'+n.pitch+'_'+currentBeat,pitch:n.pitch,start_beat:n.start_beat,duration_beats:Math.max(0.125,currentBeat-n.start_beat),velocity:Math.min(1,n.velocity||0.8),pan:0.0}));const rec=midiRec.recordedNotes.map((n,i)=>({id:'rec_'+Date.now()+'_'+i,pitch:n.pitch,start_beat:n.start_beat,duration_beats:n.duration_beats,velocity:Math.min(1,n.velocity||0.8),pan:0.0}));const allNotes=[...rec,...activeNotes];setRecTempMidiNotes(allNotes);setCanvasRedrawCount(n=>n+1);setSubTabs(prev=>prev.map(s=>s.id===tab.id?{...s,currentTime:startTime+sec,isDirty:true}:s));};if(!tab._recordingStarted){tab._recordingStarted=true;}showToast('Recording MIDI to Piano Roll...','info');}catch(err){console.error('startPianoRollRecording error:',err);showToast('Lỗi khi bắt đầu ghi âm Piano Roll: '+err.message,'warning');setRecordingState('IDLE');}};const startRecordingTake=async armedTracks=>{const context=getAudioContext();if(context.state==='suspended'){await context.resume();}setRecordingState('RECORDING');setRecTempMidiNotes([]);setRecTempAudioBuffer(null);const startTimelineTime=currentTime;setRecStartTimelineTime(startTimelineTime);recordingStartTimeRef.current=startTimelineTime;const secondsPerBeat=60.0/(parseInt(bpm)||120);const startBeat=startTimelineTime/secondsPerBeat;nextMetronomeBeatRef.current=Math.ceil(startBeat);activeMIDIRecordersRef.current={};activeAudioRecordersRef.current={};recordingPCMDataRef.current={};startOffsetTimeRef.current=startTimelineTime;startAudioTimeRef.current=context.currentTime;startTrackPlayback(startTimelineTime);setIsPlaying(true);let midiRecList=[];for(let track of armedTracks){if(track.inputSource.deviceType==='MIDI_KEYBOARD'){const midiRec=new ClientMIDIRecorder(context,parseInt(bpm)||120,4);const tempMidiItemId='midi_rec_'+Date.now()+'_'+track.id;midiRec.tempMidiItemId=tempMidiItemId;updateActiveTracks(prev=>prev.map(t=>{if(t.id!==track.id)return t;return{...t,midiItems:[...(t.midiItems||[]),{id:tempMidiItemId,name:'Recording...',startTime:startTimelineTime,duration:4*(secondsPerBeat*4),notes:[]}]};}));midiRec.onNoteOn=(pitch,currentBeat)=>{const canvas=trackVuRefs.current[track.id];if(canvas){drawVuMeter(canvas,0);setTimeout(()=>drawVuMeter(canvas,-60),100);}const elapsedBeats=Math.max(0,currentBeat);const elapsedSec=elapsedBeats*secondsPerBeat;const durationSec=Math.max(4*(secondsPerBeat*4),elapsedSec);const allNotes=[...midiRec.recordedNotes,...Array.from(midiRec.activeNotes.values()).map(n=>({...n,duration_beats:currentBeat-n.start_beat}))];setRecTempMidiNotes(allNotes);setCanvasRedrawCount(n=>n+1);if(midiRec.tempMidiItemId){updateActiveTracks(prev=>prev.map(t=>{if(t.id!==track.id)return t;return{...t,midiItems:t.midiItems.map(m=>m.id===midiRec.tempMidiItemId?{...m,notes:allNotes,duration:durationSec}:m)};}));}};midiRec.onNoteOff=()=>{const currentBeat=(context.currentTime-midiRec.recStartAudioTime-midiRec.latencyCompSec)/(60.0/midiRec.bpm);const elapsedBeats=Math.max(0,currentBeat);const elapsedSec=elapsedBeats*secondsPerBeat;const durationSec=Math.max(4*(secondsPerBeat*4),elapsedSec);const activeNotesArray=Array.from(midiRec.activeNotes.values()).map(n=>({...n,duration_beats:currentBeat-n.start_beat}));const allNotes=[...midiRec.recordedNotes,...activeNotesArray];setRecTempMidiNotes(allNotes);setCanvasRedrawCount(n=>n+1);if(midiRec.tempMidiItemId){updateActiveTracks(prev=>prev.map(t=>{if(t.id!==track.id)return t;return{...t,midiItems:t.midiItems.map(m=>m.id===midiRec.tempMidiItemId?{...m,notes:allNotes,duration:durationSec}:m)};}));}};midiRec.start(startTimelineTime/(secondsPerBeat*4),track.inputSource.deviceId);activeMIDIRecordersRef.current[track.id]=midiRec;midiRecList.push({trackId:track.id,midiRec});}else if(track.inputSource.deviceType==='MICROPHONE'){const audioRec=new ClientAudioRecorder(context);try{await audioRec.initializeInput(track.inputSource.deviceId);recordingPCMDataRef.current[track.id]=[];audioRec.onLevelUpdate=db=>{const canvas=trackVuRefs.current[track.id];if(canvas){drawVuMeter(canvas,db);}};audioRec.onPCMChunk=chunk=>{if(recordingPCMDataRef.current[track.id]){const currentData=recordingPCMDataRef.current[track.id];const newData=new Float32Array(currentData.length+chunk.length);newData.set(currentData);newData.set(chunk,currentData.length);recordingPCMDataRef.current[track.id]=newData;}};const monitorGain=track.monitoringEnabled?context.destination:null;await audioRec.start(monitorGain,track.monitoringEnabled);activeAudioRecordersRef.current[track.id]=audioRec;}catch(err){console.error('Failed to initialize microphone:',err);showToast('Không khởi động được micro: '+err.message,'warning');}}}recordingSyncRef.current=setInterval(()=>{const secondsPerBeatInt=60.0/(parseInt(bpm)||120);for(let{trackId,midiRec}of midiRecList){if(!midiRec.isRecording||!midiRec.tempMidiItemId)continue;const currentTimeSec=Math.max(0,getAudioContext().currentTime-midiRec.recStartAudioTime-midiRec.latencyCompSec);const currentBeat=currentTimeSec/secondsPerBeatInt;const allNotes=[...midiRec.recordedNotes,...Array.from(midiRec.activeNotes.values()).map(n=>({...n,duration_beats:currentBeat-n.start_beat}))];const durationSec=Math.max(4*(secondsPerBeatInt*4),currentTimeSec);if(Math.random()<0.2){// Throttle log to prevent flooding (approx 2 logs/sec) console.log(`[DevLog] [MIDI Rec Sync] Temp Item ID: ${midiRec.tempMidiItemId}, Duration: ${durationSec.toFixed(2)}s, ActiveNotes: ${midiRec.activeNotes.size}, RecordedNotes: ${midiRec.recordedNotes.length}`);}setRecTempMidiNotes(allNotes);setCanvasRedrawCount(n=>n+1);updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,midiItems:t.midiItems.map(m=>m.id===midiRec.tempMidiItemId?{...m,notes:allNotes,duration:durationSec}:m)};}));}},100);showToast('Đang ghi âm...','info');};const stopRecordingTake=async()=>{setRecordingState('IDLE');stopAllPlayback();const context=getAudioContext();const secondsPerBeat=60.0/(parseInt(bpm)||120);const secondsPerBar=secondsPerBeat*4;const midiRecorders=activeMIDIRecordersRef.current;const audioRecorders=activeAudioRecordersRef.current;Object.keys(trackVuRefs.current).forEach(tid=>{const canvas=trackVuRefs.current[tid];if(canvas)drawVuMeter(canvas,-60);});let hasRecordedAnything=false;for(let trackId in midiRecorders){const midiRec=midiRecorders[trackId];if(midiRec.tempTabId){const recordedNotes=midiRec.stop();if(recordedNotes.length>0){const newNotes=recordedNotes.map((n,i)=>({id:'rec_'+Date.now()+'_'+i,pitch:n.pitch,start_beat:Math.max(0,n.start_beat||0),duration_beats:Math.max(0.125,n.duration_beats||0.25),velocity:Math.min(1,n.velocity||0.8),pan:0.0}));setSubTabs(prev=>prev.map(s=>s.id===midiRec.tempTabId?{...s,notes:[...(s.notes||[]),...newNotes],isDirty:true}:s));setCanvasRedrawCount(n=>n+1);showToast(`Đã ghi ${recordedNotes.length} notes vào Piano Roll.`,'success');}hasRecordedAnything=true;}else if(midiRec.tempMidiItemId){const recCurrentTimeSec=Math.max(0,context.currentTime-midiRec.recStartAudioTime-midiRec.latencyCompSec);const recElapsedBeats=recCurrentTimeSec/(60.0/midiRec.bpm);const totalDurationBeats=Math.max(4.0,recordedNotes.length>0?Math.max(recElapsedBeats,...recordedNotes.map(n=>n.start_beat+n.duration_beats)):recElapsedBeats);updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const itemIndex=(t.midiItems||[]).findIndex(m=>m.id===midiRec.tempMidiItemId);if(itemIndex>=0){const updatedItems=[...t.midiItems];updatedItems[itemIndex]={...updatedItems[itemIndex],name:recordedNotes.length>0?'Recorded MIDI':'Empty MIDI',notes:recordedNotes,duration:Math.ceil(totalDurationBeats/4)*secondsPerBar};return{...t,midiItems:updatedItems};}const newMidiItem={id:'midi_rec_'+Date.now(),name:'Recorded MIDI',startTime:recordingStartTimeRef.current,duration:Math.ceil(totalDurationBeats/4)*secondsPerBar,length_bars:Math.ceil(totalDurationBeats/4),notes:recordedNotes};return{...t,midiItems:[...(t.midiItems||[]),newMidiItem]};}));if(recordedNotes.length>0){hasRecordedAnything=true;}}else if(recordedNotes.length>0){hasRecordedAnything=true;const totalDurationBeats=Math.max(4.0,...recordedNotes.map(n=>n.start_beat+n.duration_beats));const newMidiItem={id:'midi_rec_'+Date.now(),name:'Recorded MIDI',startTime:recordingStartTimeRef.current,duration:Math.ceil(totalDurationBeats/4)*secondsPerBar,length_bars:Math.ceil(totalDurationBeats/4),notes:recordedNotes};updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,midiItems:[...(t.midiItems||[]),newMidiItem]};}));}}for(let trackId in audioRecorders){const audioRec=audioRecorders[trackId];const audioBuffer=await audioRec.stop();if(audioBuffer&&audioBuffer.duration>0.05){hasRecordedAnything=true;const newClip={id:'clip_rec_'+Date.now(),name:'Recorded Audio.wav',buffer:audioBuffer,startTime:recordingStartTimeRef.current,speed:1.0};updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const updatedClips=[...(t.clips||[]),newClip];return{...t,clips:updatedClips,buffer:updatedClips[0]?.buffer||null,startTime:updatedClips[0]?.startTime||0,name:updatedClips[0]?.name||t.name};}));}}if(recordingSyncRef.current){clearInterval(recordingSyncRef.current);recordingSyncRef.current=null;}activeMIDIRecordersRef.current={};activeAudioRecordersRef.current={};recordingPCMDataRef.current={};setRecTempMidiNotes([]);setRecTempAudioBuffer(null);if(hasRecordedAnything){showToast('Đã thu và lưu bản ghi vào timeline.','success');}else{showToast('Đã dừng ghi âm (không phát hiện tín hiệu đầu vào).','info');}};const handleSubTabResizeMouseDown=e=>{e.preventDefault();e.stopPropagation();const startY=e.clientY;const startHeight=subTabHeight;const handleMouseMove=moveEvent=>{const deltaY=moveEvent.clientY-startY;const newHeight=Math.max(48,Math.min(400,startHeight+deltaY));setSubTabHeight(newHeight);};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};// ── Playhead set with seek+play ──